Fastening the teeth to clover-hulling cylinders



S. KARNS.

Clover Huller.

Patented Nov. 8, 1853.

UNITED STATES PATENT OFFICE.

SAML. KARNS, OF BLOODY RUN, PENNSYLVANIA.

FASTENING THE TEETH TO CLOVER-HULLING CYLINDERS.

Specification of Letters Patent No.

To all whom it may concern:

Be it known that I, SAMUEL KARNs, of Bloody Run, in the county ofBedford and State of Pennsylvania, have invented a new and usefulImprovement in Machines for Hulling Clover-Seed, of which the followingis a full, clear, and exact description, reference being had to theaccompanying drawing, which forms part of this specification, and inwhich Figure 1 represents a view in perspective of my clover huller andFig. 2 is a vertical longitudinal section of the same.

My invention consists in a new method of constructing the teeth of theconcave and cylinders by forming them of wire and se curing them tosheets of leather or other elastic substance which are made fast to thefaces of the cylinder and concave; the teeth. thus formed having thequality of elasticity which'allows them to yield and pass any accidentalobstruction that may occur when the machine is in operation, while thewearing away of the leather is retarded by incasing it with wire or thinbands of metal.

In the accompanying drawin A is the frame of the machine; it is composedof side and cross pieces and supportsthe two concaves B, B, which arepreceded by an inclined feed board C. Immediately above each concave isa toothed cylinder D, D, the shafts of these cylinders are supported inbrasses secured to the side pieces of the frame; each shaft is alsofitted wit-h a belt pulley a a, which is encircled by a belt 0 thatcommunicates motion from one to the other, and one shaft is fitted witha second belt pulley 0 to which motion is imparted by the prime moverthrough the intervention of a belt E. The whole machine is surmounted bya cap F which covers the cylinders and prevents the rising of dust. Thatconcave (B) nearer the feedboard is furnished with teeth (Z formed ofpieces of 10,208, dated November 8, 1853.

wire which are parallel with each other and with the axis of the concaveand are secured at their extremities in a sheet of leather or otherelastic substance. The other concave B, and the two cylinders D, D, areeach furnished with teeth 6 formed of pieces of wire one of whoseextremities is made fast, by riveting or bending in a sheet of leather2' or other elastic substance, while their other extremities are bentbackward as represented in the drawing in the direction they wouldnaturally tend to assume in drawing substances through the machine. Thetoothed sheet of leather for the concave is secured to it by tacks orscrews those for the concave are conveniently secured to them by bindingthem with wire In which also protects the leather from abrasion.

The machine is put in motion by means of the driving belt E and thecylinders are caused to turn in the directions indicated by the arrowsin Fig. 2. The clover is introduced upon the feed board C and beingdrawn in between the revolving cylinders and concave is delivered at theopposite eX tremity of the machine.

The mode herein described of constructing the teeth of clover hullershas the great advantages of simplicity and cheapness; while at the sametime they possess the quality of elasticity which enables them to yieldinstead of breaking when any accidental obstruction is opposed toprevent the motion of the cylinders.

That I claim as my invention and desire to secure by Letters Patent isBinding of the teeth to the hulling cylinder by means of the wire bandas set forth.

In testimony whereof I have hereunto subscribed my name.

SAMUEL KARNS.

Vitnesses:

E. S. RENWIGK, P. A. IVATsoN.

